The protective sheath of the radicle in a monocot seed is . . . . . . .

The seed of $Lupinus \text{ } arcticus$ excavated from Arctic Tundra, germinated and flowered after an estimated record of dormancy of how many years (in $years$)?

The formation of fruit without fertilization is known as:

What type of seeds are cereal and legume seeds?

What is the viability of lupine seed?

In castor, the proliferation of the outer integumentary cells at the micropylar region forms a structure known as the caruncle. What is the primary function of this structure?